No.337 P versus NP

ちょうど良い難易度

>>
,>++++++++[<---->-]<[ get until space
    >
,>++++++++[<---->-]<]
>
,----------[ get until newline
    >
,----------]
<<[>[<+>-]<<]>> sum sign and digits
++++++[<------>-]+<--[>-<[-]]>[- if is zero
    <<<[<]<+>>[>]>> set equal flag
]
<<
<<[>[<+>-]<<]>> sum sign and digits
++++[<---->-]+<-[>-<[-]]>[- if is one
    <<<+>>> set equal flag
]
++++++++[<++++>-]<+ make bang sign
<+<[>-<[-]]>[- if not equal
    >.< put bang sign
]
+++++++[>++++>+<<-]>. put equal sign
>+++. put newline